Sectional cementitious structure.



wilt muse/a:

G. ATTERBURY. SECTIONAL CEMENTITIIOUS STRUCTURE.

APPLICATION FILED FEB. 15. I915.

1,25% 1G9, Patented Jan; 22, 1918.

2 SHEETS-SHEET @wvmtoz 'MJXW W W G. ATTERBURY. SECTIONAL CEMENTITIOUSSTRUCTURE. APPLICATION FILED FEB.15. 1915,

LQMAWB Pat-muted. Jan, 22,1918.

2 SHEETS-SHEET 2.

PATENT carton.

GROSVENOB, ATTERBURY, OF NEW YORK, N. Y., ASSIGNOR TO STANDARDIZEDHOUSING CORPORATION, A CORPORATION OF DELAWARE.

SECTIONAL CEMENTITIOUS STRUCTURE.

. Specification of Letters Patent.

Patented Jan. 22, rate.

Application filed February 15, 1915. Serial No. 8,205.

To all whom it may concern: A

Be it known that l, GROSVENOR A'rrnnnunr, a citizen of the UnitedStates, and a resident of the borough of Manhattan, city, county, andState of New York, have 111- vented certain new and useful Improvementsin Sectional Cementitious Structures, of which the following is adescription.

My invention relates to structures, in the nature of buildings, composedof slabs of concrete or other cementitious material and Y is of especialvalue in connection with,

though in no way limited to, such structures where the component slabsare of large size, for example, large enough so that a single floor slabmay constitute an entire floor of the building, or of a room thereof,and a. single wall slab or a comparatively few such slabs placed side byside may constitute an entire wall of a story of the building.

An object of my invention is to provide slabs of the kind referred to,which shall be so formed as to enable them to be easily secured to theadjacent slabs, whether in the same plane therewith or at right anglesthereto and so that the joints between the adjacent slabs may berendered substantially water-tight, without resorting to the tedious andexpensive hand operations now in use.

Another object of my invention is to so form the slabs that there willbe in the completed tructure uninterrupted passages throu h the wallsand floors, which may be used or the installation of pipes, conduits,wires, etc., either during the erection of the structure or at asubsequent time and for the circulation of fluids, such as water, steam,or other liquids or gases, to regulate the temperature of the structureand for similar purposes.

It has been found that under the present practice of joining togetheradjacent wall slabs of structures, it is almost impossible to prevent adriving rain from leaking through age of this moisture into the interiorof the wall slabs, I provide the upper and lower surfaces of the outeredge of the floor slabs with rabbets or similar devices, which efi'ectually accomplish the desired result. In addition to the features ofconstruction above referred to and the method of constructing buildingsof slabs embodying these features, my invention includes the variousother articles, combinations and steps described in the specificationand more fully set forth in the claimappended thereto.

In the drawing,

Figure 1 is a perspective view of a portion of my improved structurewith the upper wall slab removed from the floor slab for the sake ofclearness;

Fig. 2 is a longitudinal section of a por- Filtion of myimprovedstructure, showing the method of finishing the joints betweenthe wall and floor slabs;

' Fig. 3 is a similar longitudinal section,

but is taken through a wall at right angles to the wall of Fig. 2;

Fig. 4 is a similar longitudinal section taken at a diflerent point inthe wall illustrated in Fig. 2;

Fig. 5 is a horizontal sectional view ofa portion of a wall of myimproved structure, showing particularly the method of securing togetheradjacent wall slabs.

The wall slabs shown in Fig. l are desig nated by the reference numeral6 and the floor slab by the reference numeral 7. As

shown? the floor slab 7 is rabbeted on its upper surface near the outered e thereof at 8, 9 adapting it to receive the lower edges 10, 11 ofthe upper wall slab, as shown for instance in Figs. 3 and 4. The floorslab 7 is rabbeted on its lower surface near the enterior edge thereofat 12 to receive the upper flat surface 13 of the lower wall slab. ,As aresult of this rabbeting, it is apparent that the walland floor slabswill be anchored together without the use of the customary metal orother anchors.

Each of the wall slabs is provided with a plurality of voids extendingvertically therethrough. In the embodiment of my invention shown herein,each wall slab is provided with three such voids designated in Fig. 5

Nit?

as 14, 15 and 16. It will be noted, by reference to Fig. 3, that thevoids 15 are reduced or built in at the top to form the small openings17. The purpose of this building in, is to provide a more extendedbearing surface for the joint between the wall and floor slabs, andform, when such holes are plugged, a surface to hold grout.

The voids 16 are not built in or reduced, but are of constant crosssection throughout to permit their use for finishing the joints, etc. bygrouting, as will be hereinafter more fully described. Provision is madeat 18 at the top of each of these voids 16 for the re-' ception of aplate 19 for closing the void, as shown in the lower part of Fig. 2.

Referring now to the floor slab 7, it will I be noted' that this slab isprovided with a vertical void 20 adapted to be alined with one' of ,thevoids, such as the void- 16 of the wall slab. The floor slab is alsoprovided with voids 21 adapted to communicate with other voids such as14 and .15 of the wall slabs and with voids such as 22 0f the floorslabs. These voids 22 of the floor slabs may run parallel either to theside or to the end tudinally extending grooves adapted to cooperate withcorresponding grooves on adjacent slabs. As herein shown, each slab isprovided with two external grooves of semicircular cross section and asingle internal groove located therebetween and of rectangular crosssection. The particular number, arrangement and form of these groovesis, however, obviously immaterial.

Referring now to the method of constructing a building from slabs of thegeneral type as heretofore described, attention is directed to Figs. 1and 2. In Fig. 1 the rabbeting by means of which the wall and floorslabs are anchored together, is clearly shown. In Fig. 2 I have shownthe method of grouting or finishing with. cementitious material, thejoints between the wall. and floor slabs. In accomplishing this step, Iinsert in the void 16 of the upper wall slab, a pipe. or conveyer 25leading from reservoir 26 which may be. filled with grout or othercementitious material in a liquid state. The plate 19 is inserted at thetop of the void 16 in the lower wall slab to provide a surface forreceiving the cementitious material which forms a bed.

the floor slab and the'upper wall slab, as 4 well as between the floorslab and the lower wall slab. The void 20 in the floor slab will, ofcourse, be filled duringthis operation, but if it is desired to maintainany of the other passage-ways or voids open, such for instance as thatindicated at 17,21 in Fig. 3, it may be done by inserting therein a plugor sprue during the grouting operation, and thereafter withdrawing it.Heretofore, in constructing buildings of this general type, it has beennecessary to do a considerable amount of trowel work or buttering byhand in an attempt to render the joints weather-proof. Experience hasshown, however, that this hand operation is not only very expensive, butthat it fails to produce water-tight joints. The utility of myintogether adjacent slabs,-for example, wall slabs, reference is madeparticularly to Fig. 5. The grooves 23 and 2 1 above described cooperatewith the corresponding grooves of an adjacent slab to form the voids 2324 A extending longitudinally of the "slabs. fierwalls, Fig.2representing, for instance, in.

tainof these voids, as herein shown-the voids by filling them withcementitious material in the liquid state. During this filling process,I use the grouting strips 28 to prevent the escape of the cementitiousmaterial from the exterior of the interior of the wall, and

I I insert temporarily into the void 24 a plug Y or sprue 24 to keepthis void open, and to also perform the function of locking the adjacentblocks in alined position during the pouring and hardening operations.After these operations are completed, the plug 2-1:

- is removed, leaving an open void which is most useful in draining olf,within the wall itself, any moisture which may, by any chance, enter thewall from the exterior. at the joint. The provision of this void 24*thus effectually prevents any of the moisture which has entered thejoint from reaching the interior of the building.

The various advantages of my invention "will be apparent from theforegoing. Particular stress is, however, laid upon the fact that in thestructure made as above described, all of the joints, whether between aq 23*, I utilize for securing the slabs together wall and a floor slabor between two wall 7 slabs, are weather-tight and water-proof and aremade so by the expenditure of less labor than is necessary to producethe imperfect joints now in general use. The fact that I am able toprovide uninterrupted passage ways through the wall and floor slabs forthe conduction of-fluids and for the installation of pipes, conduits,wires, etc., is also important.

For the sake of clearness, I have described herein a single embodimentof my invention,

but it is to be understood that this embodi- .180

meaaoe inent has been chosen as an example of the many forms which myinvention may take and that I do not Wish to be limited to this wparticular structure since obviously many changes may be made therein,without departing from the spirit of my invention.

What I claim is:

A structure composed of floor slabs and wall slabs, the floor slabsbeing rabbeted on their .upper and lower surfaces adjacent the outeredges thereof, for the reception of the lower and upper edges of theupper and lower wall slabs, said upper and lower wall slabs being eachprovided with an open ver' voids of said wall slabs, and therebyprovides an uninterrupted passage throughout the wall, for the purposeof ventilation and the like.

GROSVENOR ATTERB i"; Witnesses: 7

JOHN Pa'raas E. A. MCDERMOTL

